Method and terminal for determining handover for traffic offloaded onto WLAN
AssigneeLG Electronics Inc.
InventorsHyun Sook Kim, Jae Hyun Kim, Lae Young Kim, Tae Hyeon Kim
Life of this patent
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Abstract
There is provided a method for determining a handover. The method may comprise: determining, by User Equipment (UE), whether a timer is running, wherein the UE has accessed multiple Radio Access Technologies (RATs); if the timer is not running, performing, by the UE, a handover of a data traffic, which has been routed onto a Wireless LAN (WLAN), to an original RAT; and if the timer is running, not performing, by the UE, the handover of the data traffic, which has been routed onto the WLAN, to the original RAT. The data traffic may be been routed onto the WLAN as a result of Circuit Switched Fall-Back (CSFB) or 3GPP RAT mobility.
Claims12
A method for offloading non-voice traffic, the method comprising:
- receiving, at a user equipment (UE) connected to an E-UTRAN, a Circuit Switched (CS) Service Notification from an eNodeB, wherein the UE supports Multi-Access Packet Data Network Connectivity (MAPCON) and Internet Protocol Flow Mobility and Seamless Offload (IFOM), and wherein an Inter System Routing Policy (ISRP) is stored in the UE;
- connecting to a UTRAN as a result of a handover procedure triggered by the CS Service Notification;
- offloading non-voice traffic to a WLAN based on the ISRP;
- connecting to an E-UTRAN as a result of a handover procedure;
- re-routing the non-voice traffic through the E-UTRAN if it is determined that a timer has expired;
- and
- maintaining the offloading of the non-voice traffic through the WLAN if it is determined that the timer has not expired.
A User Equipment (UE) for offloading non-voice traffic, the UE comprising:
- a transceiver unit that receives a Circuit Switched (CS) Service Notification from an eNodeB while the UE is connected to an E-UTRAN, wherein the UE supports Multi-Access Packet Data Network Connectivity (MAPCON) and Internet Protocol Flow Mobility and Seamless Offload (IFOM), and
- wherein an Inter System Routing Policy (ISRP) is stored in the UE;
- and a control unit that causes the UE to:
- connect to a UTRAN as a result of a handover procedure triggered by the CS Service Notification;
- offload non-voice traffic to a WLAN based on the ISRP;
- connect to an E-UTRAN as a result of a handover procedure;
- re-rout the non-voice traffic through the E-UTRAN if it is determined that a timer has expired;
- and
- maintain the offloading of the non-voice traffic through the WLAN if it is determined that the timer has not expired.
Dependencies are inferred from the claim text.